2006/3/31

Bird base diagrams on a square in another deformation [with preserving each foldable and symmetric structure: invariance under 180°[π (rad)]- rotation at the center of the square in the following examples], also based on the methods given by Mr. J. Maekawa:

The deformation begining with the standard diagram is as follows:
[Smoothly variation depends on appropriate manual control of the vertical slide bar in the right side of your window...]